JPH052613A - Wide area medical service system - Google Patents

Abstract

PURPOSE:To reduce the burden of system management in a hospital and to facilitate the exchange of information between respective hospitals and a research system by installing communication terminal equipments in respective hospitals and permitting the plural hospitals to share the data base of medical information. CONSTITUTION:The communication terminal equipments 15, 16 and 17 are respectively provided for the research system 11 and the plural hopitals 13A and 13B, and a communication network 18 organically connects the data base 12 of medical information shared by the research system 11 and the hospitals 13A and 13B. Plural IC cards 1 with which various kinds of information are transferred between the communication terminal equipments 16 and 17 installed in the hospitals 13A and 13B are prepared, and they are given to a patient in respective hospitals. Thus, clinical record information on the patient having the IC card 1 can be derived from the data base 12 by installing the IC card 1 where access information on medical information is stored in the communication terminal equipment 16 and accessing the data base 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wide area medical service system including a database of medical information, and a service system for expanding medical services by using an IC card in which access information to the database is stored. Regarding

[0002]

2. Description of the Related Art There are various uses of electronic computers. For example, in medical institutions such as hospitals, it is possible to manage patients by storing them in a database, especially patient information such as medical record information. The patient's chart information can be searched.

Further, application of an IC card in which a memory, a processor and the like are built in a standardized plastic card to a medical service is also considered. IC card
It includes a central processing unit (CPU), a data RAM (random access memory), a data ROM (read only memory), a program ROM, an input / output circuit and the like. The input / output circuit functions as a gate between the external terminal group and the central processing unit. The external terminal group has a power supply terminal for receiving power from a terminal device, a data input / output terminal, and a control terminal such as a reset terminal.

As an example of a document describing an IC card, "CMOS device handbook" published by Nikkan Kogyo Shimbun on September 29, 1987, P656 to P66.
There is 5.

[0005]

As described above, an electronic computer is used in a hospital as a medical institution, but it is generally used in each hospital, and the system management burden is large. Since the computer is managed in each hospital, it is difficult to exchange information between each hospital and the research institute, and the patient's medical record information is managed by each hospital. It was found by the present inventor that it is difficult to provide appropriate medical services to the same patient in a hospital or a plurality of hospitals, which is a main factor inhibiting the expansion of wide area medical services.

An object of the present invention is to reduce the burden of system management in a hospital.

Another object of the present invention is to facilitate information exchange between hospitals and research institutions.

Further, another object of the present invention is to make it possible to provide appropriate medical services to the same patient at a plurality of hospitals.

The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

[0010]

The outline of the representative one of the inventions disclosed in the present application will be briefly described as follows.

That is, a communication terminal device distributed and installed in a plurality of hospitals, and a network in which a database of medical information shared by the plurality of hospitals is organically connected by a communication network, and the communication terminal device. A wide-area medical service system is formed by including a plurality of IC cards that enable the exchange of information between the IC cards, and the IC cards contain the medical information stored in the database corresponding to each IC card. It stores the access information of. Further, in order to facilitate information exchange between each hospital and a research institute, a research institution can be included in the above network. Furthermore, in order to prevent the confidentiality of the above-mentioned access information held by the IC card and the unauthorized access to the system, the control logic for controlling whether or not all or some of the circuit blocks can be operated externally is used. It is advisable to judge the legitimacy of the secret code supplied from the company and control it.

[0012]

According to the above-mentioned means, the communication terminal device is installed in each hospital and the database of medical information is shared by a plurality of hospitals, which serves to reduce the burden of computer management in each hospital. . In addition, the inclusion of research institutions in the network facilitates information exchange between each hospital and research institutions. Further, the database of medical information is shared by a plurality of hospitals as described above, and the access information about the medical information stored in the database corresponding to each IC card is the IC.
The fact that it is stored in the card makes it possible to provide appropriate medical services at a plurality of hospitals to patients who carry such IC cards.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows an embodiment system of the present invention.

The system shown in FIG.
Or the communication terminal devices 15, 16 and 17 which are distributed and installed in a plurality of hospitals 13A and 13B respectively, and the research institute 11 mentioned above.
And a network 10 in which a database 12 of medical information shared by hospitals 13A and 13B is organically connected by a communication network 18, and the above communication terminal devices, particularly communication terminal devices 16 installed in hospitals 13A and 13B, 1
7 and an IC card 1 that enables various kinds of information to be exchanged. Although a plurality of IC cards 1 are prepared and are not particularly limited, they are given to a patient at each hospital 13A, 13B.

Although not particularly limited, personal computers or workstations having an interface with the IC card 1 are applied to the communication terminal devices 16 and 17, respectively. The network is not particularly limited, but is a VAN or LAN using a public telephone line network. Further, the database 12 is stored in each hospital 13A, 1
In order to reduce the system management burden of 3B, it is centrally managed by medical institutions.

The communication terminal devices 15, 16 and 17 are capable of exchanging information with each other via a communication network 18, and write medical information to the database 12 and necessary medical information from the database 12. The information can be read. The research institution 11 can effectively use a large amount of medical information in the database 12 for research. Further, in each hospital 13A, 13B, various medical information in the database 12 can be used for medical treatment.

The IC card 1 stores access information about the medical information stored in the database 12 corresponding to each IC card. That is,
Information such as patient charts is stored in the database 12 via the communication terminal devices 16 and 17 installed in the hospitals 13A and 13B.
The access information for identifying the chart information and the like stored in the database and making it readable is stored in the IC card 1 delivered for each patient.

An IC storing such access information
By mounting the card 1 on the communication terminal device 16 and accessing the database 12, it is possible to retrieve the medical record information of the patient who possesses the IC card from the database 12. Such withdrawal of medical record information is not limited to the hospital that issued the IC card, but is possible at all hospitals that join the network 10. This enables the following medical services.

For example, the result of a certain patient being treated and tested in the hospital 13A is the communication terminal device 16 of the hospital 13A.
Input from the above and is stored in the database 12 managed by the medical institution. When the patient needs to receive treatment at another hospital 13B, the IC card possessed by the patient is attached to the communication terminal device 17 of the hospital 13B, so that the patient has previously received (the above example. Then, the treatment and test results received at the hospital 13A)
Can be retrieved from the database 12 at.
Based on such information, the patient is
You can continue to receive appropriate treatment in 3B.

FIG. 2 shows a configuration example of the IC card 1.

The IC card 1 shown in the figure is not particularly limited, but a data RAM (random access) in which the access information of the central processing unit 2 and the database 12 is stored in the standardized plastic card 1.・ Memory) 3, data ROM (read only memory)
4, a program ROM 5, an input / output circuit 6, and a security circuit 7 for preventing unauthorized access.
The input / output circuit 6 functions as a gate between the external terminal group 8 and the central processing unit 2. The external terminal group 8 has a power supply terminal for receiving power from a terminal device (not shown), a data input / output terminal, and a control terminal such as a reset terminal.

The security circuit 7 holds a preset secret code, compares this secret code with the secret code supplied from the communication terminal device 16 or 17 in which the IC card is mounted, and when they match, that is, When it is determined that the patient carrying the IC card 1 is valid, the input / output circuit 6 is controlled by the enable control signal EC * (* indicates low active) so that the input / output operation can be performed. As a result, the communication terminal device 13A, 1
It becomes possible to access the database 12 through 3B and further through it. Here, the communication terminal device 16
Or, the secret code supplied from 17 is a patient ID or a secret code number set for each patient.
It is possible to input from the keyboard or the like of the communication terminal device in which the card is mounted.

FIG. 3 shows an example of a circuit configuration for controlling the operation of the central processing unit 2 in response to the enable control signal EC *.

The circuit shown in FIG. 3 is a structure for an appropriate CMOS inverter which is arranged in the data latch section of the control register or the data transfer path for determining the operation mode of the central processing unit 2, for example. Between the terminals Vdd and Vss, p-channel type MOSFGETQ1 and n for CMOS inverter configuration are provided.
A channel type MOSFET Q2 and an n channel type cutoff MOSFET Q3 are connected in series. MO above
The gate electrodes of the SFETs Q1 and Q2 are coupled to regular signal wirings, and the enable control signal EC * is applied to the gate electrode of the cutoff MOSFET Q3. When the CMOS inverter as shown in FIG. 3 is arranged at an appropriate position that influences the control operation of the control register (not shown) or other central processing unit 2, when the enable control signal EC * is at the low level, The internal logic operation is randomly changed or fixed, and normal logic operation cannot be performed. Therefore, if the enable code EC * set to low level is controlled when the secret code preset in the security circuit 7 and the secret code supplied from the communication terminal device do not match, the CMOS inverter shown in FIG. It becomes impossible to operate and illegal access is prohibited.

An example of the security circuit 7 is shown in FIG.

The security circuit 7 shown in FIG.
Although not particularly limited, the EPROM is provided through the external terminal group 8.
The i-bit secret codes D1 to Di are electrically written according to information provided from a writing device (not shown) such as a writer, and the written i-bit secret codes D1 to Di are transmitted from the terminal device (not shown) via the external terminal group 8. Given i
Bit PINs I1 to Ii are compared and judged by bit correspondence i
A number of program decision circuits LG1 to LGi are provided. In the external terminal group 8, the passwords D1 to Di and the password I1
The external terminals to which ~ Ii is supplied can be made common.

The program determination circuit LG1 is not particularly limited, but FA (floating gate avalanche injection) MO as a non-volatile memory element is used.
An SQ4 and a p-channel load MOSFET Q5 are connected in series to a pair of power supply terminals Vdd and Vss. FA
An access control circuit R / W1 for performing write / read control with respect to the MOSQ4 is provided. The access control circuit R / W1 has a write enable signal WE for instructing a write operation, and a write formed by a booster circuit HV1. The voltage Vpp and the output of the input buffer IB1 are given. In the write operation for the FAMOS Q4, the write enable signal WE is asserted from the write device (not shown), and in the read operation for the FAMOS Q4, the write enable signal WE is negated by the power supply voltage level given from the terminal device (not shown).

When the write enable signal WE is asserted, the access control circuit R / W1 controls the writing of the FAMOS Q4 according to the level of the secret identification bit D1. For example, when the security code bit D1 is high level, FAMOS
Q4 is set to the written state, and its threshold voltage is made higher than the power supply voltage Vdd. When the secret identification bit D1 is at the low level, the FAMOS Q4 is in the erased state, and its threshold voltage is made lower than the power supply voltage Vdd. on the other hand,
When the write enable signal WE is negated, the FAM is accessed via the access control circuit R / W1.
Power supply voltage Vdd is supplied to the gate electrode of OSQ4. Therefore, when the FAMOS Q4 is in the write state, the inverter BD1 whose input terminal is connected to the coupling node of the FAMOS Q4 and the load MOSFET Q5 outputs a low level. When the FAMOS Q4 is in the erased state, the output of the inverter BD1 is set to the high level.

In order to compare the secret code bit D1 thus programmed with the secret code bit I1 supplied from the external terminal group 8 through the communication terminal device, the secret code bit I1
Latch circuit IL1 for holding and an inverter BI for inverting the level of the data output from this latch circuit IL1
1, the output of this inverter BI1 and the above inverter BD
And an exclusive OR gate EOR1 for comparing with the output of 1. The output of the exclusive OR gate EOR1 is set to low level when the secret identification bit D1 and the secret identification bit I1 match, and to high level when they do not coincide.

Other program determination circuits LG2 to
LGi is also constructed in the same manner as the program decision circuit LG1.

Each of the program decision circuits LG1 to LG
The signal output from Gi is supplied to the NOR gate circuit NOR. The output of the NOR gate circuit NOR is set to the high level only when the output signals of the program determination circuits LG1 to LGi are at the low level, that is, when the passwords I1 to Ii and D1 to Di are completely matched. The output of the NOR gate NOR is supplied to the latch circuit EL. The output of the latch circuit EL is initially set to low level at power-on reset. Therefore, when the passwords I1 to Ii and D1 to Di completely match and the output of the NOR gate NOR is set to the high level, the output of the latch circuit EL is also inverted to the high level in response to this, and the inverter IMV receiving this outputs the same. The output signal, that is, the enable control signal EC * is asserted to the low level. When the enable control signal EC * is asserted to the low level in this way, the validity of the card user such as the patient who possesses the IC card is recognized as described above, and the input / output circuit 6 Is enabled, and normal operation of the central processing unit 2 is enabled.

According to the above embodiment, the following operational effects can be obtained.

(1) Communication terminal devices 16 and 17 are installed in a plurality of hospitals 13A and 13B.
By sharing the database 12 of medical information by 13B, the database 12 can be centrally managed by a single medical institution, and each hospital 13A,
The individual system management load in 13B is reduced.

(2) The inclusion of the research institution 11 in the network 12 facilitates the exchange of information between the hospitals 13A and 13B and the research institution 11, and the research institution has a large amount of the database 12. Medical data will be made available for research.

(3) The database 12 of medical information is shared by a plurality of hospitals 13A and 13B, and the access information for the medical information stored in the database 12 corresponding to each IC card 1 is the IC card. Such an IC card 1 by being stored in
Appropriate medical services at multiple hospitals will be possible for patients who have medical care.

(4) By configuring the control logic for controlling whether or not all or some of the circuit blocks are operable, to judge and control the validity of the password supplied from the outside, It is possible to prevent the confidentiality of the access information and the like held by the IC card and the unauthorized access to the system.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited thereto and can be variously modified without departing from the gist thereof.

For example, in the above embodiment, FAMOS was used as a non-volatile memory element as a means for storing the secret code, but a non-volatile memory element of MNOS (metal nitride oxide semiconductor) type, and further a fuse blowing type. It can be changed to a programmable logic circuit or the like. In addition, the security circuits 7 have passwords I1 to I
The terminals for giving i and the passwords D1 to Di are not limited to being common as in the above embodiment, but may be individualized. Regarding information that unduly violates the privacy of the patient, access may be prohibited unless a predetermined password is input from the research institution 11 and each hospital 13A, 13B. By doing so, the unjustified invasion of the patient's privacy is prevented. Although the above embodiment describes the case including two hospitals 13A and 13B, more hospitals can be connected to the network.

[0039]

The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows.

That is, since the communication terminal device is installed in each hospital and the database of medical information is shared by a plurality of hospitals, the burden of system management in each hospital can be reduced. Further, by including a research institution in the network, information exchange between each hospital and the research institution is facilitated. Furthermore, as described above, a database of medical information is shared by a plurality of hospitals, and the access information for the medical information stored in the database corresponding to each IC card is stored in the IC card. It is possible to provide appropriate medical services at a plurality of hospitals for a patient who has such an IC card.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a wide area medical service system according to an embodiment of the present invention.

FIG. 2 is a block diagram of an IC card included in the wide area medical service system.

FIG. 3 is an example circuit diagram for controlling an operation of a central processing unit by receiving an enable control signal in the IC card.

FIG. 4 is a circuit diagram showing an example of a security circuit included in the IC card.

[Explanation of symbols]

2 Central processing unit 3 data RAM 4 data ROM 5 Program ROM 6 I / O circuit 7 Security circuit 8 External terminal group Q3 cut-off MOSFET I1 to Ii Programmed secret code PIN input from D1 to Di terminals LG1 to LGi Program decision circuit Q4 FAMOS 11 research institutions 12 Database 13A, 13B Hospital 15 Communication terminal 16 Communication terminal 17 Communication terminal 18 communication network

Claims (3)

[Claims] 1. A network in which a communication terminal device distributed in a plurality of hospitals and a database of medical information shared by the plurality of hospitals are organically connected by a communication network, and the communication terminal device. This IC including a plurality of IC cards that enable the exchange of information between
A wide area medical service system in which access information on medical information stored in the database is stored in the card for each IC card. 2. The wide area medical service system according to claim 1, wherein a communication terminal device installed in a research institution is coupled to the network. 3. The IC card includes a control logic for controlling whether or not all or some of the circuit blocks are operable, a storage means for holding a predetermined secret code or information corresponding thereto, and an external device. 3. A security means for providing information for instructing the operation of the circuit block to the control logic when the secret code supplied from the device matches the information held in the storage means. Wide area medical service system described.